Frontend uudelleenrakennettu: Astro-komponentit, Wasm pääsäikeessä, ei Workeria

Vanha frontend siirretty temp/. Uusi rakenne:
- StatusBar.astro, Terminal.astro, Editor.astro, Guide.astro
- global.css erillinen
- Wasm pääsäikeessä (ei Worker — yksinkertainen, debugattava)
- Tab-completion, dropdown, projektikortti, Monaco, GUIDE.md
- Ei tokenisointia eikä koodilaboratoriota

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

network-poc/frontend/node_modules/sharp/src/sharp.cc

@@ -0,0 +1,43 @@
+/*!
+  Copyright 2013 Lovell Fuller and others.
+  SPDX-License-Identifier: Apache-2.0
+*/
+
+#include <mutex>
+
+#include <napi.h>
+#include <vips/vips8>
+
+#include "./common.h"
+#include "./metadata.h"
+#include "./pipeline.h"
+#include "./stats.h"
+#include "./utilities.h"
+
+Napi::Object init(Napi::Env env, Napi::Object exports) {
+  static std::once_flag sharp_vips_init_once;
+  std::call_once(sharp_vips_init_once, []() {
+    vips_init("sharp");
+  });
+
+  g_log_set_handler("VIPS", static_cast<GLogLevelFlags>(G_LOG_LEVEL_WARNING),
+    static_cast<GLogFunc>(sharp::VipsWarningCallback), nullptr);
+
+  // Methods available to JavaScript
+  exports.Set("metadata", Napi::Function::New(env, metadata));
+  exports.Set("pipeline", Napi::Function::New(env, pipeline));
+  exports.Set("cache", Napi::Function::New(env, cache));
+  exports.Set("concurrency", Napi::Function::New(env, concurrency));
+  exports.Set("counters", Napi::Function::New(env, counters));
+  exports.Set("simd", Napi::Function::New(env, simd));
+  exports.Set("libvipsVersion", Napi::Function::New(env, libvipsVersion));
+  exports.Set("format", Napi::Function::New(env, format));
+  exports.Set("block", Napi::Function::New(env, block));
+  exports.Set("_maxColourDistance", Napi::Function::New(env, _maxColourDistance));
+  exports.Set("_isUsingJemalloc", Napi::Function::New(env, _isUsingJemalloc));
+  exports.Set("_isUsingX64V2", Napi::Function::New(env, _isUsingX64V2));
+  exports.Set("stats", Napi::Function::New(env, stats));
+  return exports;
+}
+
+NODE_API_MODULE(sharp, init)